Busterb,
It would solve a few issues

.
However, with what I outlined, Windows 2000 will work on the new hardware. I can't guarantee all the drivers will like it, but it should.
I am just relating what I went through when I had to replace the 20GB HDs (don't ask why they ordered them for developer workstations) with 250GB hard drives at another customer. Even though I'm a DBA, and definitely not a PC Tech there, I had to replace a few in Windows 2000 Professional workstations. It didn't take so long, and the Data Lifeguard Tools made life easy.
Thanks,
Mitch